Subtract 14/40 from 20/15, Solve 1 5/15

Subtract 14/40 from 20/15

1^st number: 1 5/15, 2^nd number: 14/40

20/15 - 14/40 is 59/60.

Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120

Next, find the equivalent fraction of both fractional numbers with denominator 120
For the 1st fraction, since 15 × 8 = 120,
20/15 = 20 × 8/15 × 8 = 160/120
Likewise, for the 2nd fraction, since 40 × 3 = 120,
14/40 = 14 × 3/40 × 3 = 42/120
Subtract the two like fractions:
160/120 - 42/120 = 160 - 42/120 = 118/120
After reducing the fraction, the answer is 59/60

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